The Dukedom of Dato is a Spanish dukedom created on 21 March 1921. King Alfonso XIII of Spain

Alfonso XIII of Spain

Alfonso XIII was King of Spain from 1886 until 1931. His mother, Maria Christina of Austria, was appointed regent during his minority...

 created the Dukedom for María de Barrenechea whose husband, Eduardo Dato e Iradier

Eduardo Dato e Iradier

Eduardo Dato e Iradier was a Spanish political leader. He served three times as Spanish Prime Minister: from 27 October 1913 to 9 December 1915, from 11 June 1917 to 3 November 1917, and from 28 April 1920 till his death...

, Prime Minister of Spain

Prime Minister of Spain

The President of the Government of Spain , sometimes known in English as the Prime Minister of Spain, is the head of Government of Spain. The current office is established under the Constitution of 1978...

, had been assassinated on 8 March 1921.

Succession

Like all other Spanish noble titles, the Dukedom of Dato descended according to male-preference cognatic primogeniture, meaning that females could inherit the Dukedom if they had no brothers (or if their brothers had no issue). That changed in 2006 and the eldest child (regardless of sex) succeeds to the Dukedom.

History

Upon the death of the 1st Duchess, the title was inherited by her eldest daughter, Isabel Dato. The 2nd Duchess died unmarried and childless, so the Dukedom devolved upon her younger sister, María del Carmen Dato. The 3rd Duchess was succeeded by her son, Eduardo Espinosa de los Monteros y Dato, who was in turn succeeded by his own son, Eduardo Espinosa de los Monteros y Español.

List of holders

	Title	Period
Created by Alfonso XIII of Spain Alfonso XIII of Spain Alfonso XIII was King of Spain from 1886 until 1931. His mother, Maria Christina of Austria, was appointed regent during his minority...
I	María del Carmen Barrenechea y Monteguí	1921–1925
II	María Isabel Dato y Barrenechea	1925–1937
III	María del Carmen Dato y Barrenechea	1937–1949
IV	Eduardo Espinosa de los Monteros y Dato	1949–1965
V	Eduardo Espinosa de los Monteros y Español	1965-present